My father Huang Weiguo stood in my grandfather Huang Kexing's office, feeling the coldness of the office, there was a rotten smell in the air, it was the musty smell caused by the convection of fresh air for a long time, except for the dust on the desk, sofa and bookcase, all the furnishings in the room were regular, Huang Weiguo seemed to be able to feel the smell of the man called Huang Buxing called his father, but in fact, there was no taste, it was just an illusion, because Huang Buxing refused any taste, Huang Weiguo remembered that Huang Kexing, who was called his father, had a very light diet and absolutely clean clothes, so his body would not emit any smell at all, if there was, it was the kind of concern that only his father had. The jeep sent Huang Buxing from the ministry back to Houhai, and then from Houhai to the ministry, no one in the Houhai alley knew Huang Buxing, and even the people in the ministry did not know who Huang Buxing was. He always wears a pair of white gloves when he reads documents, walks very lightly, so light that there are no marks, there is no clutter in his pockets, and at home, the pieces of paper on which he has written must be burned by his own hands. At that time, Huang Weiguo didn't even know what his father did, only said that he worked in the scientific research department, if it weren't for his father, Huang Weiguo would think that this person called his father was simply a monster and a psychopath. Huang Weiguo remembers that this man called his father is very good at mathematics, it is said that he was once a top student in the Department of Mathematics of Tsinghua University, can paint, can play the piano, can play the violin, and has an extraordinary memory, this person called father often recounts the books he has read completely, at that time Huang Weiguo always said to this man called father, you peek, you peek, but he didn't find this man called a decent peek.

This man called father also accompanies him, and he will also ask him, saying, what are your ideals when you grow up? Huang Weiguo didn't want to say that being an agent is the most exciting profession in the world. Huang Weiguo remembered that this was the only time this man called his father was angry, and said to him, what kind of agent to be? Why such a ridiculous idea? That's the profession of a madman. We should be a science and technology worker to defend our country.

Huang Weiguo said, no, I just want to be an agent, and being an agent is also building the country.

Huang Weiguo didn't expect that this man called his father raised his hand and slapped him in the face, saying, ridiculous, do you know that it is a profession to die for?

Huang Weiguo said, how do you know that an agent is a profession to die? Besides, what's wrong with dying for the sake of the country?

This man called Father actually said angrily, "If I say no, I can't."

Huang Weiguo said, you are a selfish man, or a timid man. Why does everyone else have a mother, but I don't? Every time you say that your mother will come back, working in a distant land, but her mother is there? My mother must have died, so she will never come back, so I say you are a selfish man, or a timid man.

It was the first and last quarrel between their father and son, and that day Huang Weiguo saw the man called his father crying, but pretended that nothing had happened. It wasn't until his father was beaten during the Cultural Revolution that Huang Weiguo knew that his father worked in the Central Investigation Department, and that he was a "big spy" and a "big traitor".

Huang Weiguo stroked the table and bookcase in the room, as if he felt the existence of the man called Father, and everything was cold, and he couldn't feel anything, and the man called Father seemed to have never existed in his life.

Huang Weiguo opened the bookcase, took out a copy of "Zhou Yi", opened the book, and saw that the blank space of the book was full of annotations, but these annotations were not Chinese characters, nor foreign languages, if "Zhou Yi" was a book from heaven, then his father's annotations were also from heaven. Huang Weiguo took out another diary and found that there was nothing on it except the score. Tang Weidong, head of the Central Investigation Group, said that the backup system may not exist at all. But after the disappearance of the man called my father, this office has been sealed by the order of the above, which shows that the existence of the backup system is not a legend, but a real existence, and this backup system was not established after the founding of the People's Republic of China, but was established during the Yan'an period, codenamed "The Sword of Protecting the Country", the password, the state is in emergency, and the sword must come out. Now that there is a crisis in the system, where is the sword? Where is the password? Tang Weidong's cruel words are not to ask him to die here, but to illustrate the seriousness of the problem, if a miracle really happens and a backup system is found in this room, then why be afraid of death? But Huang Weiguo knew that a miracle would not happen on this night. At this time, the mood is like seeing a bullet flying towards your heart, but you don't have the slightest solution. These moods made Huang Weiguo's body frenzy for a while, and then cold little by little.

Huang Weiguo found a note in a pile of mathematical formulas in his diary, saying: "The Chinese language is really a wonderful symbol, and there are many ethnic groups in China, including Hani, Yi, Miao, Dai, Zhuang, Yao, Hui, Buyi, Lahu, Mangren, Yiche and other world-inhabited peoples. Their language itself is a kind of cipher, and if you are not from that ethnicity, then, they say in front of you that they are going to kill you, and you still don't know it. ”

What do you mean? What do you mean? What seems to have been discovered? And it seems that nothing has been found?

Huang Weiguo found another map in his diary. What does this map mean?

Huang Weiguo had a gut feeling that the backup system must be in this room, but where is it?

Huang Weiguo heard the sound of rain outside the house, the sound of raindrops seemed to count the time passing by second by second, Huang Weiguo picked up the music score left by his father casually, and his heart became frantic again.

Time passed second by second, but Huang Weiguo became desperate second by second.